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US 8,572,850 B2Granted
Carpet knife
OwnerYuewei Wuinventor
Life of this patent
Estimating the term…
Abstract
A carpet knife having a housing, an active blade installed in the housing, and a blade clamping means having a clamping cover and a thumb screw. The housing has a thumb screw hole, a pin hole, at least one side guiding groove, and an active blade installation bar. The clamping cover has at least one side guiding bar having a wedge outer surface, and a rear eccentric guiding groove. The thumb screw has a head having an under surface and a shank formed on the under surface. The head has a pin formed on the under surface thereof which is able to enter and move in the rear eccentric guiding groove.
Claims16
A carpet knife comprising:
- a housing made up of a first cover and a second cover detachably coupling together, said housing having a thumb screw hole, a pin hole, at least one side guiding groove, and an active blade installation bar;
- an active blade installed in said housing;
- and,
- a blade clamping means having a clamping cover and a thumb screw, said clamping cover having an inner surface contacting said active blade, an outer surface, at least one side guiding bar having a wedge outer surface, and a rear eccentric guiding groove, said thumb screw having a head having an under surface, a shank formed on said under surface and having a snap ring groove defined therein, a locating snap ring received in said snap ring groove, and a pin formed on said under surface thereof.
1 more element
Dependencies are inferred from the claim text.